Improvement in machines for countersinking the holes in butt-hinges



2 Sheets-Sheet 1.

L. P. SUMMERS. MACHINE FOR GOUNTERSINKING THE HOLES IN BUTT-HINGES.

. Pa t n tgd Dec. 6,187.0.

2 Sheets-Sheet 2.

L. P. SUMMERS. MACHINE FOR GOUNTERSINKING THE HOLES IN BUTT HINGES.

Patented Dec. 6, 1870.

l dlliitll finite 13min (tin-m 5 'LUOIUS I. SUMMERS, OF NEW BRITAIN, CONNECTICUT, ASSIGNQR TO P.

& F. OORBIN, OF SAME PLACE.

7 Letters Patent No. 109,851, area December a, 1870.

IMPROVEMENT lN MACHINES FOR COUNTERSlNKlNG THE HOLES IN IBUTT-HINGES.

The Schedule referred to in these Letters Patent and making part 0! the same.

To all whpm it may concern Be it known that I, Looms P. Summons, of New Britain,'in the countj of Hartford and State of Connecticut, have invented and made a newjand useful- Improvement in Machinery for Oonntersinking the Holes in Hinges, 850., and the following is declared to be a correct description thereof I Difliculty has been-experienced in drilling a number of'holes close together or countersinking them; because the spindles of the tools require to be sulficiently. strong, and of a size'adapted to receive pulleys for the d1'-iving-'belt; v

In counter-sinking the holes of small hinges this difiiculty has been especially experienced, and thy invention is primarily adapted to countersinkiiig hingeholes, but may be used with anyother articles to which it is available.

I make use of a slide upon a bed adapted to receive the hinges as they are supplied at one end. Beneath this slide are fingers that reciprocate, and the slide and bed have a vertical movement to carry thehinges' toward the revolving drills or countcrsinks that are upon stockslield in movable-heads.

Whilethe bed is raised to press the hinges to the tools, the fingers return to their normal position, and the bed, in lowering. brings the hinge-holes upon the pins or fingers-and these, in reciprocating, move the hinges along, delivering a. complete hinge and placing another in position, the vboring-tools being so positioned or adjusted that they operate successively until all the holes have been operated upon in the progross of the hinge through the machine.

In the drawing- Figure 1 is a. vertical longitudinal section;

Figure 2 is across-section at the line a: x; and

Figure-3 is a plan sectionally below the line y y.

The bed of the machine is of suitable size and shape.- 1 have shown the table a and .legs b.

Upon the table a I secure the bases of two or more standards, 0 a, that are slotted for clamping-bolts old,

so that they'can be turned around upon the bed a into any desired position and there secured.

Each standard 0 carries a drill or countersinking-- tool, d, with a pulley, e, for the driving-belt.

The slide for the hinges is made witlra central bearing-bar, 'i, and rebated bars 7:. It, for receiving the edgesof the hinges, and these latter bars h'should'be adjustable to suit ditfe'rcr'itsizes of hinges, and the slide h h i is upon a'frame, with end giiide-bars' tpassing through the bed a, to near the shaft g, where cams k I; are provided to lift the frameland slides-hh 'i, and press the hinges upon the tools d,- and then lower the bed, so that the fingers l-l may move the hinges alongto present other holes tobe countersunk.

The fingers l lare connected adjustably to a bar, or, that is reciprocaterl' bythe "cam n-to move the hinges along, and it returns while the hinges and slide are elevated, the spring 0 drawing back said fingers; and a stop may be provided to regulate the return movement of the fingers and'the consequent extent of feed-motion to the hinges at each reciprocation.

The ends of the fingers I being tapering, they easily enter the'holes in the hinges, and, in moving-them, bring the said holes successively into line with: the drills or countersinks, so that one hinge is finished every complete movement of the machina and another hinge fcd in.- Y

I claim as my invcntio'n- 'A vertically-moving. slide,'carrying the hinges or other articles to .be bored or countersunk, and presenting the same to the revolving tools, in combination with reciprocatingfingers that move the articles along progressively,substantially as and for the purposes set fortln Signed by me this-26th day of September, A. D. 1870.

Witnesses: L. I. SUMMERS.

CHARLES Pnon, Enwn. L. PRIOR. 

